Refrigerating-machine



P. HSCHBACHER- REFRIGEHAT-ING; MACHINE. APPLICATION FILED JULY 12. 1920.

1,389,7 1? PatentedSept. 6, 1921.

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m W/MW UNITED STATES PHILIP FISCHBACHER, OF QUINCY, ILLINGIS, ASSIGNQR TO .EJVIEEICAN SANITAE PATENT REFRIGERATION (10., OF OWENSBORO, KENTUCKY, A CGEPORATEON BELA- WARE.

IEtEFRIGEBATING-MACEINT To all whom it may (former-u:

Be it known that I, P111n11 FISCHBAOIXER, a citizen of the United States, residing at Quincy, in the county of Adams and State of Illinois, have'invented certain new and useful Improvements in RefrigeratingMachines, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to refrigerating machinery of that character wherein an element under pressure is allowed to expand within therefrigerating coils, is then withdrawn therefrom to a compressor and is corn: pressed therein, and then condensed and then passes back through the expansion or refrigerating coils, and particularly to a condenser whereby the gas is condensed after leaving the compressor, this application forming a division of my application filed on July 30, 1919, Serial #3l h222, on refrigerating machines.

One of the objects of the present invention is to improve the construction of the condenser by providing means whereby cooling water or other liquid in the condenser may be kept cool by the passage of air through cooling tubes passing through the water and by the aid of fins forming part of the water containing tank.

Another object is to provide means for forcing air through these tubes and against the condenser jacket.

Other objects will appear in the course of the following description.

My invention is illustrated in the accompanying drawings, wherein Figure 1 is an elevation partly in section of a portion of a refrigerating plant showing in section the condensing jacket and coils, the compression cylinder being also in section;

Fig. 2 is an enlarged section through the condensing coils and air coils taken transversely to the plane of Fig. 1.

Referring to the drawings, it will be seen that I haveillustrated a portion of a cornplete refrigerating plant, the entire refrigerating plant being shown in my copending application for patent above referred to. In these drawings, A designates generally the compressor, B generally the condenser, C a separator disposed within the condenser,

E a receiver, and H an electric motor operat- Specification of Letters Patent.

314,222. Divided and this a Serial 110. 395/198.

plication idea. July if-'2,

ing the condenser and operating the fan for driving cool air through the condenser. have not illustrated the :pansion re ula nor the refrigerating coils. Inasmuch as compressor forms the subject matter ot a separate application for patent filed of even date herewith, it is not believed neccssaiy to describe the compressor.

The compressor has toe usual piston ll operating on its out stroke to draw re'1r'g., ant into the compressor by way of pi e from the refrigerating coils and upon its in stroke to (.OHIPIGSStlUJ heretofore mun/C refrigerant and force it into the scpar which forms the subject matter of a separz application for patent tiled of even dac herewith and which is designed for the pi pose of separating oil and other impurities from the refrigerant. From the separator, the refrigerant passes to the cooli g coils The refrigerant traverses these coils. beiin gradually condensed as it does so, and was; into the receiver 1*), and from thence by P c pipe to an expansion regulator shown) which forms the subject latter separate application for patent, and thence again to the refrigerating coils (not shown). The refrigerant passes from the chainle of the compressor into the pipe 3?, f thence into the upper end of the separator and by pipe 56 into the condensing coils Disposed around the cylinder or cylinders of the condenser is 'a tank or jacket which is formed of thin corrugated Inc" and is riveted or otherwise attached at i bottom upon the flange 15 of the coinpresstu body. The sidewall of the jacket is very deeply corrugated so as to give a relatively large cooling arez, and extending through the interior of the cooling jacket and open ing upon the outer face of the cooling jacket are a plurality, of thin metal pipes 3 these pipes being open at their opposite ends. Extending spirally around the cylinders of the compressor and submerged u 1 in the cooling jacket is a condensing coil and it will be noted from 1 that the tubes 43 are disposed between these coils and act to space the coils apart, these tubes -23 extending transverselyacross the jacket in the manner illustrated in Fig. 2.

h'lounted in suitable hearings on one s' f the compressor is a blower or air pellcr l5 which forces cool air POL... L

iinst the adjacent tins of the jacket a2 and through the pipes 4:3 so that constant currents of cold air are caused to continually traverse these pipes 43. The crank shaft -12 carries thereon a worm Wheel 6 driven by a worm 47 on a worm shaft 48. This shaft passes through a suitable stufiing box 49 in the crank case 14 and at its outer end is driven by the motor H. This shaft also carries upon it the combined band and tiy Wheel 50, and the air propeller is mounted upon a shaft 51 supported in suitable bearings, this shaft carrying upon it a. band wheel 53 to which power is transmitted rom the band wheel and flywheel by means of a belt. A pipe 57 leads from the lower end of the coil 44 into the receiver E and from the receiver extends a pipe 58 which leads into the expansion regulator not shown). The expansion regulator is esigned to control the passage of condensed refrigerating agent from the pipe 50 into the expansion or'refrigerating coils and to he in turn controlled by the evaporation pressure or back pressure within the expansion or i efrigerating coils. A water supply pipe 66 is provided with a valve 44 to compensate for loss of water from the jacket. by evaporation or from other causes.

, Th water level in the jacket 42 is kept above the level of the upper end of the condenser.

By this construction a very thorough cooling of the refrigerant is obtained with arninimum amount of water. The cooling jacket has deep and large corrugated spaces to give ample cooling surface, and the, large number of thin metal tubes 43 running through the cooling solution and between the coils of the condenser additionally acts to keep the cooling solution within thejacket at a proper temperature.

I claim 1. In a refrigerating compressor, a compression cylinder and means for condensing a. refrigerating agent ejected from the cylinder comprising a jacket surrounding the cylinder and adapted to contain cooling liquid, a cooling coil disposed within the jacket and into which the refrigerating agent from the cylinder is discharged, said jacket having transversely extending pipes of relatively thin metal opening at their outer ends upon the outside of the jacket.

2: In refrigerating machinery, a compressor having a compressing cylinder, and means for condensing the refrigerating agent passing through the cylinder comprising a thin metallic jacket surrounding the cylinder, the jacket having its periphery deeply corrugated to provide a relatively extended cooling surface, a condensing coil disposed within the jacket and into which the refrigerant from the compressor is discharged, and open-ended pipes of thin metal extending transversely across the jacket and between the convolutions of the coil.

3. The combination with the compressor of a refrigerating machine having a compressing cylinder and a cooling coil into which the refrigerating agent of the cylinder is discharged, of a jacket surrounding the cylinder and the coil and adapted to contain cooling liquid, said jacket having outwardly projecting fins and transversely extending pipes of thin metal open at their outer ends upon the exterior of the jacket and extending all in one direction transversely of the jacket. and means for dis charging air against the outer surface of the jacket and into theadjacent open ends of said pipes.

4. The combination with a compressor having a compressing cylinder. and a cooling coil into which the refrigerating agent from the cylinder is discharged. of a jacket surrounding the cylinder and the coil and adapted to contain cooling liquid, said jacket having transversely extending pipes of relatively thin metal opening at their outer ends upon the outside of the jacket and extending transversely of the jacket and between the convolutions of the cooling coil and supporting the convolutions in spaced relation to each other.

5. Th combination with the compressor of a refrigerating machine having-a com-., pressing cylinder, a cooling coil into which the refrigerating element from the refrigerator is discharged, and a jacket, said cooling coil being disposed within the jacket, said jacket having pipes of relatively thin material traversing the interior of the jacket and opening at their outer ends upon the exterior of the jacket.

In testimony whereof I hereunto affix my signature.

' PHILIP FISCHBACHER. 

